Flame cutting burner apparatus



Feb. 21, 1933. L. J. HANCOCK FLAME CUTTING BURNER APPARATUS 3 Sheets-Shet Filed March 15, 1932 ATTORNEY Feb. 21, 1933. O K 1,898,955

FLAME CUTTING BURNER APPARATUS Filed March 15, 1932 5 Sheets-Sheet 2 x 0 i Q INVENTOR Lzffi'An/coc/r TTORNH Y Feb. 21, 1933. L. J. HANCOCK FLAME CUTTING BURNER APPARATUS 5 Sheets-Sheet 3 Filed March 15, 1952 11 //1/ MENTOR I LIZHM/coc/r @Fg Q95 By I QTTORNJSY Patented Feb. 21, 1933 PTE FFHE LESLIE JOHN HANCOCK, F SUTTON, ENGLAND FLAME CUTTING BURNER APPARATUS Application filed March 15,

This invention relates to flame cutting burner apparatus of the kind comprising a longitudinally traveling carriage and a transversely traveling carriage mounted upon the longitudinally moving one, the said transversely traveling carriage supporting a flame cutting burner or blow-pipe at one end and a tracer device at the other end.

The primary object of the invention is the '10 provision of synchronizing means between the opposite sides of the longitudinally movable carriage for the purpose of preventing relatively independent traveling movements of the said sides, i. e. preventing whip of the ap aratus.

ii further object of the invention is the provision of a single transverse track rail on the longitudinally traveling carriage on which rail the transversely traveling carriage runs.

The above and other objects of the invention will be clear from the following description taken in conjunction with the accompanying drawings, and the claims.

In these drawings: Y

Fig. 1 is an end elevation of a flame cutting burner apparatus constructed in accordance with the invention;

Fig. 2 is a plan view of the said apparatus;

Fig. 3 is a side elevation thereof;

Fig. 4 shows a modification of one feature of the invention; and

Fi .5 is a detail'show-ing a double burner arrangement.

In these drawings the longitudinally movable carriage comprises two tubular rails 1 and 2 extending from side to side of the machine and two side castings 83 on which are bosses 4- and 5'for the reception of the ends'ofthe tubular rails, one of the rails, 1, being disposed at the leading ends of the castings and the other, 2, at the following ends. The track of this frame comprises two longitudinal rails (3+6 o1 right-angular section arranged one at one side of the machine and the other at the other side thereof; and the frame is borne on this track by two wheels 7 and 8 rigidly fixed at. the ends or O a-shatt 9 passing throughthe tubular rail 1 1932, Serial No. 599,021, and in Great Britain December 29, 1931.

and supported in bearings at the ends 01": the rail. The wheel 7 is of the kind provided at each side with flanges which engage'the sides of the track rail and so prevent lateral displacement of the roller and carriage.

For the purpose of ensuring that the carriage does not whip i. e., does not depart from a true right-angular position with respect to track rails 6-6, the inner sides of the wheels or the ends of the shaft adjacent these sides have fixed to them spur wheels l0-10 whilst racks 1111 for engagement with these wheels are fixed on the inner sides of the tracks 6,-6, one rack to each track. By this means synchronous movement of the wheels 7-8 and true movement of the carriage is ensured. The diameter of the pitch circle of each wheel 10 is equal to the running diameter of its respective wheel ('7 or 8) The transversely movable carriage comprises a casting 12 with two downwardly and sidewardly projecting wings 13-13 for the fixing of the ends of stubs 1515 for rollers 16-16, and a downwardly extending central part 17 for the fixing of the end of stub 18 for a check roller 19. The rollers 16 have V grooves in their peripheries and engage and run on the upper part of the tubular rail 1, whilst the check roller WhlLh is of plain form bears against the under part of the rail 2. i

The body 12 of the casting 12 is of hollow cylindrical form and receives in the hollow an intermediate part of a tubular arm 20, one projecting end 21 of which is considerably shorter than the other end 22 and .has secured to it abracket 23 which bears the tracer :24, and the end 22 of which receives a telescopic tube carrying at its outer end the burner 26. The arm is adjustably fixed in the part 12 by means of a clamping bolt 27 passing through a longitudinal slot 28 in 12 and screwing into the arm 20: this arrangement prevents rotation of the tube and enables adjustments of the tracer to be made with respect to the pattern table 29. The bracket 23 is provided with a hollow boss 30 into which the outer end of the part 21 enters and in which this part is removably secured by clamping bolts 31. The tracer and the means for mounting it on the bracket 23 are of known kind.

The tube 25 is adjusted longitudinally of the arm 20, for the purpose of setting the burner in the most convenient position with respect to a workpiece, not shown, borne by a table comprising channel irons 3242, by means of a pinion 33 meshing with a toothed rack 34 on the u per side of the tube, a bracket 35 rigid w1th'20 bearing the spindle 36 of the pinion and a hand wheel 37 at one end of the spindle providing meansforturning thesaidpinion and so shiftingthe tube. he burner, which is mounted so as to be capable of limited universal movement to enable bevel cuts to be made, is provided with. hollow boss 38 in which the outer end of 25 is received and is clamped by a bolt 39.

The base of-the machine on which the devices above described are supported comprises castings 40-40 and 4141 braced togather in pairs by bars and joists 42 and secured together, one pair in front of the other, at 43. The castings 40 have sideward- 1y projecting arms 44 to which the track rails 66 and the racks 11-11 are secured by bolts 45 passing through the rails and racks, through spacing washers 46 between the racks, and screwing into the outer ends otthe arms- The table 29 is reversible one side .being for the reception of a templet of strip or other suitable kind and theother side for a drawing. The mounting permittingof reversal of .the table comprises trunnions 47 extending inwardly of the upper ends of the castings 40 and entering recesses at the sides of the table 29, said recesses bein about centrall of ,the table. The table is locked in ,whic ver position it is turned to by means of removable pins 48 arranged to take into recesses such as 49 :at the opposite ends of the sides of the table.

In the operation of the machine the tracer iollows onis guidedalo lines of a pattern, templet, drawing or the' ike on the table 29 and directs the carriages in their respective directions at separate moments or simultaneously so that profiles consisting of longitudinal, transverse andcurved and oblique lines are followed out by the burner 26, the paths of .the tracerand burner being similar. The side plates 3 have downwardly extendi limbs 50 at the ends of which are fitted r0 late 51. The rollers bear on the under sides of the track rails 11 and prevent the carriages tilting owing to the weight of the long arm 22, the burner 26 and the parts associated with these, the tilting tendency beingl transmitted to the rollers through check ro er 1 9 and the check rail 2. Stops 52-52 adjacent the ends of each rail 11 limit the or travel ofthe longitudinal carriage.

In a-modification of the invention the arm 25 as shown in Figure 4, may be formed as a substantially U-shaped arm including limbs 25', 25'and a yoke 25", the limb 25 extendin forwardly of the machine beneath the table 29 and terminating in a burner 26' arranged over a work-table comprising channel irons 32?. This arrangement-considerably reduces the floor space requiredfor the machine.

The invention contemplates the use of two burners, illustrated more particularly in Figure 5, wherein the arm 25 throu the medium of the joint 53 carries a doub e-arm bracket 5.4 terminatingat its endsin sockets 55 of conventional type designed forholding the blow pi s. a

What I'c im 1. In flame cutting burner apparatus longitudinal track 'rails, toothed racks adjacent the longitudinal rails, ands traveling Coarriage with track wheels that bear upon the track rails and with ztoothed wheels that have a rigid connectionbetween them and mesh with the toothed racks for thepurpose of preventing-relatively independent travelmg movements of the track wheels on the track rails.

2. In flame cutting burner apparatus, 11mlgitudinal track rails, "toothed racks adjacent the longitudinal rails, riage with track \wheels that .bear'upon the track rails, toothed wheels that mesh with the toothed racks, and 1a transverse shaft rigidly connecting the Wllfld wheels .and

and a traveling tear the track wheels together for the purpose m preventing relatively inde dent traveling molvements ,of the track w eels on the track I'al S. i

3. In flame cutting burner apparatus, .a longitudinally traveling carriage, track wheels on the carriage and longitudinal track rails on hich the said track wheels run, toothed racks adjacent to each longitudinal track rail and toothed wheels on the carriage adjacent to the track wheels, a rigid connection between the toothed wheels and the track wheels iforithe purpose of presenting relatively independent traveling mavementsof .thetrack wheels on the track rails, a transversely traveling carriage, a single transverse track on the longitudinally traveling carriage, .and track rollers on the transversely travelingcarriage-which run on the said single transverse track.

4. In flame cutting burner apparatus, a longitudinally traveling carriage, track wheels on .the carriage and longitudinal track vrails on which the said track wheels run, toothed racks adjacent to each longitudinal track rail and toothed wheels on the carriage adjacent to the track wheels. a rigid connection between the toothed wheels and the track wheels .for the purpose of preventing relatively independent traveling movements of the track wheels on the track rails, a transversely traveling carriage, a single transverse track on the longitudinally traveling carriage, a check rail parallel with the said transverse rail on the carriage, track rollers on the transversely traveling carriage which run on the said single transverse track and a check roller which runs along the said check rail.

5. In flame cutting burner apparatus, a longitudinally traveling carriage comprising side plates, cross rails extending between the side plates, and track wheels on the said side plates, longitudinal track rails on which the said track wheels run, a toothed rack adjacent to each longitudinal track rail and toothed wheels on the carriage adjacent to the track-wheels, a rigid connection between the toothed wheels and the track wheels for the purpose of preventing relatively independent traveling movements of the track wheels on the track rails, a transversely traveling carriage, and track rollers and check rollers on the transversely traveling carriage which run along the cross rails of the longitudinal carriage.

6. In flame cutting burner apparatus, a longitudinally traveling carriage comprising side plates, cross rails between the side plates and track wheels and check wheels on the side plates, longitudinal track rails against the upper and lower sides of which the track wheels and check wheels respectively run, toothed racks adjacent to each longitudinal track rail, toothed wheels on the car riage adjacent to the track wheels, a rigid connection between the toothed wheels and the track wheels for preventing relatively independent traveling movements of the track wheels on the longitudinal track rails, a transversely traveling carriage, and track rollers and check rollers on the said trans versely traveling carriage, which operate with the track rollers on one of the cross rails of the longitudinally traveling carriage and a check roller against another cross rail thereof.

7. In flame cutting burner apparatus, a longitudinally traveling carriage, track wheels on the carriage and longitudinal track rails on which the said track wheels run, toothed racks adjacent to each longitudinal track rail, toothed wheels on the carriage adjacent to the track wheels and a rigid connection between the toothed wheels and the track wheels for the purpose of preventing independent traveling movements of the track wheels on the track rails, a trans versely traveling carriage, a single transverse track on the longitudinally traveling carriage, track rollers on the transversely traveling carriage which run on the said single transverse track, an arm projecting rearwardly of said carriage and terminating in a tracer, and another arm, considerably longer than the other, projecting forwardly of the'sai'd carriage and secured atits forward endtoa'blow-pipe burner. v

8. In flame cutting burner apparatus, a longitudinally traveling carriage, track wheels on the carriage and lon itudinal track rails on which thesaidtraclr wheels run, toothed racks adjacent to each longitudinal track rail and toothed wheels on the carriage adjacentto the track wheels, v.a rigid connection between the toothed wheels and the track wheels for-the purpose ofpreventing relatively independent traveling movements of the track wheels on the track rails, a transversely traveling carriage, a single transverse track on the longitudinally traveling carriage, track rollers 011 the transversely traveling carriage which run on the said single transverse track, an arm projecting 'rearwardl-y of the said transversely traveling carriage andterminating in avtracer, another arm considerably longer than the other and projecting forwardly of the said carriage, a telescopical member mounted transversely v with respect 'to the said longer arm,anda blow-pipe burner secured to thesaid member. I I 1 j 9. In flame cutting burner apparatus, a longitudinally traveling carriage, track wheels 'on-- the carriage and longitudinal track rails on whichthe said track wheels run, toothed racks adjacent-to each longi tudinal track rail! and toothed wheelson the carriage adjacent to the track wheels, a rigid connection between the toothed wheels and the track wheels for the purpose efpreventing relatively independent. traveling movements ofthe track wheels on the track rails, a transversely traveling carriage, a single transverse track on the longitudinally traveling carriage, track rollers 011 the transversely traveling carriage which run on the said single transverse track, an arm projecting rearwardly of the said transversely traveling carriage and terminating in a tracer, another arm considerably longer than the other projecting forwardly of the said carriage, a member mounted telescopically with respect to the said longer arm, a toothed rack on the said member and a pinion rotatably mounted for engagement with the rack for the purpose of effecting telescoping movements, the said member terminating in a blow-pipe burner.

10. In flame cutting burner apparatus, longitudinal track rails, toothed racks adjacent the longitudinal rails, a traveling carriage with track wheels that bear upon the track rails and with toothed wheels that have a rigid connection between them and mesh with the toothed rac {S for the purpose oi preventing relatively independent traveling movements of the track wheels on the track rails, a transversely traveling carriage and transverse track for this carriage on the longitudinally traveling carriage, a tracer ris 4 neeaou element and a burner carried fore and aft of the transversely traveling carriage, a pattern table beneath the tracer element, a mounting permitting of reversal of the said 5 table, and locking means for retaining the table inhorizontal position.

11. In flame cutting burner apparatus, longitudinal track rails, a. traveling carriage, track wheels on the carriage for cooperation with said track rails, and cooperating means controlled and operated by the track wheels for maintaining a true right angular position of the carnage relative to the track rails during movement of thecarri 12. lu cutting burner apparatus, a frame, longitudinal track rails carried thereby, a traveling carriage, track wheels on the carriage for cooperation with said rails,

39 and cooperating members on the carriage and frame for maintaining the carriage in true right angular position with res t to the track rails during movement of t e carriage, one of said cooperating members heing operated by the track wheels.

13. In flame cutting, burner apparatus, a frame, longitudinal track rails carried by the item, a movable carriage track wheels carried by the carriage and cooperating with thef'rails, and a rack and inion coopelation between the carriage an frame during movement of the carriage, said cooperation controlled by and in the movement of i e track wheels. In testimony whereof I aflix my signa- LESLIE JOHN HANCOCK 

